The Army would LOVE an air wing, like the Corps has. BUT the Key West Agreement forbids them to have a fixed wing combat capability. You should know this.
During my time in Joint Service my CO was always a Marine. I have several medals awarded by Marines. I was with Soldeirs on the Front lines, patrol and all. I spent Float Time on the Enterprise. Helicopter assaults, etc...
When it come to CAS this isn't the Air Force you bad mouth. Ask a Green Beret or a Ranger who got a little CAS from an AC-130. Or an A-10 Pilot Those are the true believers.
If you did a little research, the Army has the most Assault Helicopters. I appreciate those guys. But no-one can't beat an A-10 or AC-130 when it comes to Time Over Target.